{"id":201452,"date":"2025-05-10T09:34:28","date_gmt":"2025-05-10T01:34:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201452\/"},"modified":"2025-05-10T09:34:28","modified_gmt":"2025-05-10T01:34:28","slug":"%e5%8d%95%e7%ba%bf%e7%a8%8bredis%e5%be%88%e5%bf%ab%e5%b8%a6%e4%bd%a0%e7%9c%8b%e7%9c%8b%e5%8e%9f%e5%9b%a0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201452\/","title":{"rendered":"\u5355\u7ebf\u7a0bRedis\u5f88\u5feb?\u5e26\u4f60\u770b\u770b\u539f\u56e0"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5355\u7ebf\u7a0bRedis\u5f88\u5feb?\u5e26\u4f60\u770b\u770b\u539f\u56e0<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5728IT\u884c\u4e1a\u8fd9\u4e2a\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u5f88\u5feb\u7684\u884c\u4e1a\uff0c\u53ea\u6709\u4e0d\u505c\u6b62\u7684\u5b66\u4e60\uff0c\u624d\u4e0d\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u5982\u679c\u4f60\u662f\u6570\u636e\u5e93\u5b66\u4e60\u8005\uff0c\u90a3\u4e48\u672c\u6587\u300a\u5355\u7ebf\u7a0bRedis\u5f88\u5feb?\u5e26\u4f60\u770b\u770b\u539f\u56e0\u300b\u5c31\u5f88\u9002\u5408\u4f60\uff01\u672c\u7bc7\u5185\u5bb9\u4e3b\u8981\u5305\u62ec\u5355\u7ebf\u7a0bRedis\u5f88\u5feb?\u5e26\u4f60\u770b\u770b\u539f\u56e0\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p>&nbsp;Redis \u4f5c\u4e3a\u4e00\u79cd KV \u7f13\u5b58\u670d\u52a1\u5668\uff0c\u6709\u7740\u6781\u9ad8\u7684\u6027\u80fd\uff0c\u76f8\u5bf9\u4e8e Memcache\uff0cRedis \u652f\u6301\u66f4\u591a\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u56e0\u6b64\u5728\u4e1a\u754c\u5e94\u7528\u5e7f\u6cdb\u3002<\/p>\n<p>\u8bb0\u5f97\u521a\u6bd5\u4e1a\u90a3\u4f1a\u53c2\u52a0\u9762\u8bd5\uff0c\u9762\u8bd5\u5b98\u4f1a\u95ee\u6211 Redis \u4e3a\u4ec0\u4e48\u5feb\uff0c\u7531\u4e8e\u5f53\u65f6\u6280\u672f\u6c34\u5e73\u6709\u9650\uff0c\u6211\u53ea\u80fd\u56de\u7b54\u51fa\u5982\u4e0b\u4e24\u70b9\uff1a<\/p>\n<ul>\n<li>\n<p>\u6570\u636e\u662f\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u7684\u3002<\/p>\n<\/li>\n<li>\n<p>Redis \u662f\u5355\u7ebf\u7a0b\u7684\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5f53\u7136\uff0c\u5c06\u6570\u636e\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\uff0c\u8bfb\u53d6\u7684\u65f6\u5019\u4e0d\u9700\u8981\u8fdb\u884c\u78c1\u76d8\u7684 IO\uff0c\u5355\u7ebf\u7a0b\u4e5f\u4fdd\u8bc1\u4e86\u7cfb\u7edf\u6ca1\u6709\u7ebf\u7a0b\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u3002<\/p>\n<p>\u4f46\u8fd9\u4e24\u70b9\u53ea\u662f Redis \u9ad8\u6027\u80fd\u539f\u56e0\u7684\u5f88\u5c0f\u4e00\u90e8\u5206\uff0c\u4e0b\u9762\u4ece\u6570\u636e\u5b58\u50a8\u5c42\u9762\u4e0a\u4e3a\u5927\u5bb6\u5206\u6790 Redis \u6027\u80fd\u4e3a\u4f55\u5982\u6b64\u9ad8\u3002<\/p>\n<p>Redis\u6027\u80fd\u5982\u6b64\u9ad8\u7684\u539f\u56e0\uff0c\u6211\u603b\u7ed3\u4e86\u5982\u4e0b\u51e0\u70b9\uff1a<\/p>\n<ul>\n<li>\n<p>\u7eaf\u5185\u5b58\u64cd\u4f5c<\/p>\n<\/li>\n<li>\n<p>\u5355\u7ebf\u7a0b<\/p>\n<\/li>\n<li>\n<p>\u9ad8\u6548\u7684\u6570\u636e\u7ed3\u6784<\/p>\n<\/li>\n<li>\n<p>\u5408\u7406\u7684\u6570\u636e\u7f16\u7801<\/p>\n<\/li>\n<li>\n<p>\u5176\u4ed6\u65b9\u9762\u7684\u4f18\u5316<\/p>\n<\/li>\n<\/ul>\n<p>\u5728 Redis \u4e2d\uff0c\u5e38\u7528\u7684 5 \u79cd\u6570\u636e\u7ed3\u6784\u548c\u5e94\u7528\u573a\u666f\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\n<p>String\uff1a\u7f13\u5b58\u3001\u8ba1\u6570\u5668\u3001\u5206\u5e03\u5f0f\u9501\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>List\uff1a\u94fe\u8868\u3001\u961f\u5217\u3001\u5fae\u535a\u5173\u6ce8\u4eba\u65f6\u95f4\u8f74\u5217\u8868\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>Hash\uff1a\u7528\u6237\u4fe1\u606f\u3001Hash \u8868\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>Set\uff1a\u53bb\u91cd\u3001\u8d5e\u3001\u8e29\u3001\u5171\u540c\u597d\u53cb\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>Zset\uff1a\u8bbf\u95ee\u91cf\u6392\u884c\u699c\u3001\u70b9\u51fb\u91cf\u6392\u884c\u699c\u7b49\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: x-large\">SDS<\/span><\/strong><\/p>\n<p>Redis \u662f\u7528 C \u8bed\u8a00\u5f00\u53d1\u5b8c\u6210\u7684\uff0c\u4f46\u5728 Redis \u5b57\u7b26\u4e32\u4e2d\uff0c\u5e76\u6ca1\u6709\u4f7f\u7528&nbsp; C \u8bed\u8a00\u4e2d\u7684\u5b57\u7b26\u4e32\uff0c\u800c\u662f\u7528\u4e00\u79cd\u79f0\u4e3a SDS\uff08Simple Dynamic String\uff09\u7684\u7ed3\u6784\u4f53\u6765\u4fdd\u5b58\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n<\/p>\n<pre>struct&nbsp;sdshdr&nbsp;{&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int&nbsp;len;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;int&nbsp;free;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;buf[];<\/pre>\n<\/p>\n<p>SDS \u7684\u7ed3\u6784\u5982\u4e0a\u56fe\uff1a<\/p>\n<ul>\n<li>\n<p>len\uff1a\u7528\u4e8e\u8bb0\u5f55 buf \u4e2d\u5df2\u4f7f\u7528\u7a7a\u95f4\u7684\u957f\u5ea6\u3002<\/p>\n<\/li>\n<li>\n<p>free\uff1abuf \u4e2d\u7a7a\u95f2\u7a7a\u95f4\u7684\u957f\u5ea6\u3002<\/p>\n<\/li>\n<li>\n<p>buf[]\uff1a\u5b58\u50a8\u5b9e\u9645\u5185\u5bb9\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff1a\u6267\u884c\u547d\u4ee4 set key value\uff0ckey \u548c value \u90fd\u662f\u4e00\u4e2a SDS \u7c7b\u578b\u7684\u7ed3\u6784\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u3002<\/p>\n<p><strong><span style=\"font-size: large\">SDS \u4e0e C \u5b57\u7b26\u4e32\u7684\u533a\u522b<\/span><\/strong><\/p>\n<p><strong>\u2460\u5e38\u6570\u65f6\u95f4\u5185\u83b7\u5f97\u5b57\u7b26\u4e32\u957f\u5ea6<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5355\u7ebf\u7a0bRedis\u5f88\u5feb?\u5e26\u4f60\u770b\u770b\u539f&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201452","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201452","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201452"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201452\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}